Method of reading CSV file function implemented in PHP-PHP Tutorial-php.cn

Method of reading CSV file function implemented in PHP

墨辰丷

Release： 2023-03-28 07:34:01

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This article mainly introduces the function of reading CSV files implemented by PHP, and analyzes the operation skills of PHP reading CSV files and strings, array traversal and conversion, etc. in the form of examples. Friends in need can refer to it

The details are as follows:

function read_csv($cvs) {
  $shuang = false;
  $str = file_get_contents($cvs);
  for ($i=0;$i<strlen($str);$i++) {
    if($str{$i}==&#39;"&#39;) {
      if($shuang) {
        if($str{$i+1}==&#39;"&#39;) {
          $str{$i} = &#39;*&#39;;
          $str{$i+1} = &#39;*&#39;;
        } else {
          $shuang = false;
        }
      } else {
        $shuang = true;
      }
    }
    if($str{$i}==&#39;,&#39;) {
      if($shuang) {
      } else {
        $str{$i} = &#39;|&#39;;
      }
    }
    if($str{$i}=="\n") {
      if($shuang) {
        $str{$i} = &#39;^&#39;;
      } else {
      }
    }
  }
  $str = str_replace(array(&#39;"&#39;,&#39;*&#39;),array(&#39;&#39;,&#39;"&#39;),$str);
  $a1 = explode("\n",$str);
  $array = array();
  foreach($a1 as $k=>$value) {
    if($value) {
      $value = str_replace("^","\n",$value);
      $array[$k] = explode("|",$value);
    }
  }
  return $array;
}

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